31 Oct
2008
31 Oct
'08
5:33 a.m.
--- On Fri, 10/31/08, Julian Wolfe (FireflyST) <fireflyst at earthlink.net> wrote:
I'm trying again to get my 11/750 running. It
turns
on, power lights are green, machine comes up halted with the
dim error light as it should. THe problem I am having is, I
get no console...I get an echo back of the characters I
type, but nothing else. Doing a BREAK command or a Ctrl-P
does nothing.
<snip>
Any suggestions? I'm out of ideas at this point.
Do you have the RDM board? I had a similar problem, although mine was also throwing odd
errors at the console. I have the RDM board, but it had faulty memory. The RDM (Remote
Diagnostic Module, L0006) has it's own microprocessor and RAM. In my case, with bad
RAM on the RDM, I couldn't get the RDM to run well enough to talk to the 11/750's
console. There are different rows of headers on the backplane, with jumpers. The functions
should be described on the cover plate sticker. Move the console serial port over to talk
directly to the 11/750's console, instead of using the RDM board. Pull the RDM board.
If you don't have the RDM board at all, then it's unlikely you have a blown
receiver/transmitter chip, if characters are echoing. Is your terminal set for full or
half duplex? If it's on half duplex, then yes, you could have a blown chip.
-Ian